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authorH.J. Lu <hjl.tools@gmail.com>2018-07-18 09:52:40 -0700
committerH.J. Lu <hjl.tools@gmail.com>2018-07-18 09:52:53 -0700
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Intel CET: Document --enable-cet
* NEWS: Mention --enable-cet. * manual/install.texi: Document --enable-cet. * INSTALL: Regenerated.
Diffstat (limited to 'manual')
-rw-r--r--manual/install.texi11
1 files changed, 11 insertions, 0 deletions
diff --git a/manual/install.texi b/manual/install.texi
index 42e9954..3a87ac8 100644
--- a/manual/install.texi
+++ b/manual/install.texi
@@ -137,6 +137,17 @@ with no-pie. The resulting glibc can be used with the GCC option,
PIE. This option also implies that glibc programs and tests are created
as dynamic position independent executables (PIE) by default.
+@item --enable-cet
+Enable Intel Control-flow Enforcement Technology (CET) support. When
+@theglibc{} is built with @option{--enable-cet}, the resulting library
+is protected with indirect branch tracking (IBT) and shadow stack
+(SHSTK)@. When CET is enabled, @theglibc{} is compatible with all
+existing executables and shared libraries. This feature is currently
+supported on i386, x86_64 and x32 with GCC 8 and binutils 2.29 or later.
+Note that when CET is enabled, @theglibc{} requires CPUs capable of
+multi-byte NOPs, like x86-64 processors as well as Intel Pentium Pro or
+newer.
+
@item --disable-profile
Don't build libraries with profiling information. You may want to use
this option if you don't plan to do profiling.